package com.trafficsys.config;

import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.stereotype.Component;

import java.util.Date;

@Component
public class MyMetaObjectHandler implements MetaObjectHandler {
    //插入时的填充策略
    @Override
    public void insertFill(MetaObject metaObject) {
        //参数String fieldName, Object fieldVal, MetaObject metaObject
        //          实体类对应属性名      插入的值       要给哪个数据处理？？
        this.setFieldValByName("createTime", new Date(), metaObject);
//        this.setFieldValByName("updateTime", new Date(), metaObject);
    }

    //更新时的填充策略
    @Override
    public void updateFill(MetaObject metaObject) {
        this.setFieldValByName("updateTime", new Date(), metaObject);
    }
}
